The reality is performance between supercharger kits on the E9X M3 S65 V8 with stock internals is all going to be relatively close. The differentiating factors are going to be the pulley and boost, tuning, fuel, transmission, etc. The Vortech based kits like the ESS VT2 car here will all hit relatively similar peak numbers. The main difference the Evolve kit offers is a Rotrex based supercharger kit which gives a different torque curve that is definitely a bit fatter in the mid range.

So how do the two stack up in the real world? From a 45 mile per hour roll the Evolve kit hit a peak speed of 136.52 miles per hour and the ESS VT2-625 kit hit 133.92. Close, but 2.6 miles per hour is 2.6 miles per hour so the Evolve kit edges out the ESS kit up top. Now, with a pulley swap certainly the ESS kit could change the outcome here. Then the same goes for the Evolve kit also changing the pulley used for some more boost. Make of that back and forth what you will.

It would have been nice to see these two cars run from a stop as they are on a drag strip. Why that race did not take place so we could see a timeslip providing more data than just a peak velocity BimmerBoost does not know. Both cars are DCT models. Enjoy the video below.

Performance is one thing, but drivability is a completely different story. The best part is the Rotrex still has so more to give (vs. the Vortech); this is the Evolve E600 (6-6.5 psi), there's also the E625 (7-7.5 psi) and then Active who sells a 640 kit (~8 psi) and 700 (~9 psi) on the same Rotrex

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Side note, how come you threaten to close DOR threads but front page videos from the event?

There should be no reason to close any DOR threads, we have threads about bimmerfest, mfest, mpact, no fly zone (i think thats what its called) event, shift sector, etc. It makes absolutely ZERO sense to single out DOR threads.

I'm glad it's front page, it's a good event, it deserves it. I had more fun at DOR 1&2 than any car show or bimmerfest etc and I didn't even run!

There should be no reason to close any DOR threads, we have threads about bimmerfest, mfest, mpact, no fly zone (i think thats what its called) event, shift sector, etc. It makes absolutely ZERO sense to single out DOR threads.

I'm glad it's front page, it's a good event, it deserves it. I had more fun at DOR 1&2 than any car show or bimmerfest etc and I didn't even run!

One thing that wasn't mentioned was the ESS car has a full exhaust and Mikey's versus the Evolve which only has exhaust cut outs and street tires. You can see LM slipping in the 2nd angle.

You can go back & froth. The Akra system has small secondary cats & the Street Radials, while LMs car has an catless X (think it's an eBay pipe) and Street tires. Traction was def an issue for some people thru the day.

LM also had a lot more on his plate during DOR then just racing. Great event, can't wait for the spring one.

Good run @LostMarine Depending on blower efficiency/size you could make more power with less boost its not at all uncommon. In this case your setup would respond to a smaller pulley and more boost. If the ESS kit is running a smaller pulley vs your car with a like pulley swap I think the top end difference is magnified in your favor based on prior results.

Good run @LostMarine Depending on blower efficiency/size you could make more power with less boost its not at all uncommon. In this case your setup would respond to a smaller pulley and more boost. If the ESS kit is running a smaller pulley vs your car with a like pulley swap I think the top end difference is magnified in your favor based on prior results.

Thanks, I know you of all people understand whats being shown here. Keyboard warriors that only regurgitate information and cant comprehend everything that is at play struggle with it.

Cfm is nearly identical when corrected to the same atmospherics, so to say one has an advantage is moot. I mean your talking less than 50cfm, but I guess if y8u read stats at face value and not the factors and standards used to measure you might be confused, or ignorant

First, I have an extremely efficient cooling system, as shown by the multiple dynos at multiple shops I took the car to, including MaxPSI. Even though the air was cold enough for both our cars to be performing very well, the vortech kit was probably seeing much higher iats than me, and the s65 is super sensitive to heat.
That alone negates the 1 psi advantage he had.
Second, what other simple minded people cant grasp, is that this setup delivers much more boost, much earlier and all the way through red line.
What does that mean? Well, it means my motor is going through the rev range much faster, meaner more power sooner, which of c8urse means faster acceleration.
Its really simple when your not binded by fanboism, and have actually driven other setups

Keyboard warriors that only regurgitate information and cant comprehend everything that is at play struggle with it.

Excellent point. I'm hoping it sinks in. Probably will sink in just as well as the basic math concerning gearing did.

Originally Posted by LostMarine

Cfm is nearly identical when corrected to the same atmospherics, so to say one has an advantage is moot. I mean your talking less than 50cfm, but I guess if y8u read stats at face value and not the factors and standards used to measure you might be confused, or ignorant

Anyone who thinks the cfm is identical is an idiot. Especially considering it isn't identical through the curve as that is a physical impossibility due to completely different impeller designs and sizes let alone the top end. It also depends on what rpm the impeller is being spun to. The fact of the matter is for the stock motor one blower works well at a certain rev range (wonder if someone will figure out which one and what range) and another has more leeway on the top end as well as the ability to be overspun always having greater top end CFM capability. Always.

It's all there in the specs and compressor maps if one actually takes the time to look. Ultimately, whomever runs their blower the hardest wins. One can be spun further than the other but this also has pluses and minuses. End of story.